Duplicator



F. A. ZIBELMAN DUPLICATOR Filed May 26. 1927 N W@ N Feb. 4, 1930.

i 2.5i'of the duplicator isfacilitated.- P

4 i ed for Yillustration viny thel accompanying i i e0.,

t lPatented Feb. 4, 1,930 f russes FRANK iA'. YzrBELivian, for CHICAGO, ILLINOIS .Application Vinea May l26,Y

The invention relates toV dup-licators,more particularly to that form of yduplicator in vwhich. a negative or reverse impression of matter to be copied is'impressedv upon an ad-y hesive duplicating surface, and positive impressions taken vtherefrom, bybringing sheets ofpaper or the like in Contact therewith. v Heretofore, lin Astripping the paper vfrom the adhesive duplicating surface, it was lnecessaryfor the operator to. hold one edge thereof and to draw thesame upwards 'and ,away from the adhesive duplicating surface to strip the sheet of paper therefrom.' YIt is the main object of'this inventionvto provide 1152 novel and improved means for'automatically strippingthe sheet ofpaper from the ad hesiv'e duplicating surface after said sheet has had an impression taken thereon fromy f .sai'diduplicating surface. f

Y:29T A, further object of this invention is'to prou-j vide simple, efficient and economic means' whereby they rapid handling ofv sheetsy of mounted .thereon a roller 9,adapted to del press a sheet of paper 10 upon the adhe j sive duplicating'surface 11. Afrack 12 is paper and the automatic stripping of the same from the adhesive duplicating surface A still further `object of this., invention con# vsists in the novely combination, arrangement and construction of various devices, ,elements l and parts, as set forth in the claims hereof, .One embodiment of the same being illustrated in the accompanying drawings and; Vdescribed in rthis 'specication' f 'v In :the 'said drawings: Y Y Y y 1, is a top plan viewof ,onel side .of a j; duplicator of the character 'described' withrmy vinvention embodied `therein; Y I Fig. 2',-is a longitudinal section ofthe same;

and` Q Fig.y 3, is a detailed viewto' be hereinafter V-described. g z Q' n y In carrying myinvention intoV effect in the embodiment thereof, which I 'have select,-

drawings, and description inV thisspecification, I provide a main frame structure of any form suitable-for the purpose, such as ymay comprise'a pair of end yframe members 1,-

y Y suitably connected by` means of tie rods 2,

orthelike, so as to makea frame of sufficient :I rigidconstruction. vA'bedy 3, secured between 1927. serial No. 194,363.7

said frame members, comprises or serves as a support for an adhesive duplicatingsurface 4. This adhesive duplicating surface may be either the surface ofthe bed itself, or a portion of afilm or strip secured to the bed, or l theremay he, if desired,fa comparatively long sheet,therportions of'which not inuse may Y be stored upon rollers vjournaled inYV said frame members,accord1ng;to a construction.'

n which iswell understood in the art to which said duplicatorsrelate. As the means for'A the storage of the film and for winding andr unwinding the same therefromand passing 'l the same over the support, as the bed 3,y form, no part of the; present invention, it is not .necessary to describe the same in detail;

On each of theside tie rods 2, lis mounted a sliding member `6, saidmemberhaving .an Y

upwardly extending portion 7,- saidv portion lying abovetheyplane ofthe bed. -Journaledy in' said lside members V6,1 are the ends ofa shaft 8, said shaft vhaving rotatably TheV upper.A portions ofY the side members 6 may be joined-together by'al connectingrod Each of the sliding side members 6 isprovided with an elongated bearing 15,in which 'l orlhandle 14, for convenience 'inoperating thesame.`-

- (is received for sliding movement 'therein-v a .i

rodi16, one end of said yrod being 'screw- -k A threaded and having a nut 17 ,threaded thereon to act as a stop, and the Aother end of said rod yhas secured thereto an V upwardly and forwardly extending bracket `18, in thefree ends of which is journaled the ends of a shaft" 19, upon whichl is rotatably mounteda roller? 20, said roller beingpositioned ina plane.' abovethe plane in which lies the roller 9,.,

said rollers9 and 2O being kadapted for conf tactingv engagement with each other, andwhen in lsuch engagement the rollers are po`^A sitioned southat the central' axis of the roller engagement with the pinions 13 provided on the roller 9, whereby said rollers when .in contacting engagement with each other, may rotate in unison. Springs 23 are provided on the rod 16 surrounding the same, one end of said spring bearing against the bracket 18, and the other end of said spring bearing against the bearing 15, said springs tendlng to normally move said brackets 18 away from the sliding members 6. f

Secured to the upper portion 7, of the sliding member 6, on the inside thereof is a pivoted latch 24, said latchr being pivoted intermediate the ends thereof and is adapted to engage a stud 25, provided on the bracket 18 and thereby couple the member 6 and brackets 18, together when desired. A leaf spring 26, secured to the member `7 above the latch 24, tends to depress the latch into engagement with said stud 25. A rod 27, is secured to the forward end frame 1 of the machine said rod having stops 28'? thereon adapted when the sliding member 7 is movedv up to the same, to swing the latch 24 aboutV its pivot to elevate the same and disengage it from the stud 25.

The extreme rearward movement of the brackets 18, may be limited by their engagement with a portion of the end frame 1 (as shown in Fig. 2 of the drawings) or a stopV means comprising a stud 29 secured to a portion of the end frame 1 may be provided for that purpose.`

A sheet of paper 10 is` shown in Fig. 1, most of which is lying flat upon thefadhesive duplicatino` surface, but one end of which,

indicated at 30, is shown raised upabove the adhesive duplicating surface, and passing between the rollers 9l and 20. l/Yhen moved to the right from the position shown in Fig.V 1, the rollers 9 and 20, because of their con` tacting engagement with each other will strip the sheet 10, from the adhesive duplicating surface, and cause the sheet to be fed upwardly and forwardly, until the sheet has been completely stripped its full length from the duplicating surface.

In the modification shown in Fig. 3, V-a bracket 18 is used in place of the bracket 18, said bracket 18 being provided at the forward end thereof with an elongated'slot 31, which slots are adapted to receive the ends of the shaft 19 upon which is rotatably mounted the roller 20. The bracket 18 has a member 32 threaded therein, the inner end of said member being provided with a. recess 33, and is adapted to be received in said elongated slot 31. A pinV 34A is positioned in said recess, the free end of said pin engaging the shaft 19, said pin being held against said shaft by means'of spiral spring 35 posi-- tioned in said recess 33, one end ofsaid spring bearing against the inner wall of said recess and the other end of said spring bearing' againstthe end of said pin 34. It will thus be obviousthat by threading the membersV 32 inwardly or outwardly the amount of pressure exerted by said pins 34 against the ends of the shaft 19 may be adjustably regulated.y Because of the above construction it will be understood that the rollers 9v and l2O when in coupled position will be in yield inglyl contacting engagement with each other. In order to prevent the front edge 300i the paper 10 from falling onto the adhesivel said rod being parallel to the rollers and ly- 1 ing directly in front of the depressing roller Y 9, and substantially on the level with the up* permost portion of the surface of the roller 9. Strips 41 of thin metal or the like have one ofV their ends securedto the rod, and extend forwardly from said rod to the front of the machine, at which'point they pass over rollers or pulleysv 42 'mounted on a rod 43 secured in the forward end frame 1 of the machine. To the lower free ends of the strips are 'connected weights 44 or the like, said weights being adapted to keep said strips taut at all times. it will thus be'noticedthatrwith the construction above described, the front'edge 30 of the sheet of paper, as it isbeing stripped from the duplicating surface, willrride'ron Vsaid strips and be keptfrom coming in contact with the adhesive duplicating surface 4.

The operation of the above 'described embodiment of my invention is as' follows:

WV ith the depressing roller 9, and stripping roller 2O in the positions shown in dotted lines in Fig. 2, of the drawings, a sheet of paper is placed fiat upon the adhesivey duplicating surface, except that the back of the sheet, shown at 30, in Fig. 1, is' prevented from falling uponthe adhesive duplica-.ting surface by means of the roller 20. As soon as the paper has been laidV uponthe adhesive duplicating surface 11, the roller 9 is vmoved rearwardly to the position shown in full lines in Figs. 1 andk2 of the drawings, by means of the handle 14, the roller serving to depress the vpaper firmly upon the adhesive duplicating surface. Y Upon the completion of the rear ward vmovement of the roller9, that is when it reaches the position shown in full lines in Figs'l and 2 of the drawings, the latch 24 engages with thestud 25, locking the two and because of Vtheir:` contacting;- engagement f surface and be fedy vupwardly' and'- forwardly by saidrollers,-theedge30 of the sheetriding.

onthe strips 41?, until the :sheet is completely stripped from the duplicating e surface. rlhe feeding pri-nci-pleof thevrollers 9 and20 :be-5 ing very 'much like the principleofrthe paper .f p y "supporting frame, a ybed and lan` adhesivefeedingrolls employed in typ'ewritingv machines; 1'

When the'rollers 9fand20 in their coupledv position have reached"the-'en'dfof'I theirv for-l wardfmovement the ylatches @twill-be en-V gaged'by the stops 28 causing saidlatches to yswing about their `pivots disengaging the studs-25, permitting the springs 23 to move the roller 20' rearwardly until the VVstop Y 17 on therod rv16 engagesmthe bearing'l. Ifnet- .already released thefp'aperl() will' be released by the separation'of the rollers 9' and 20, said,` :paper being allowedltofall into a receptacle which may be provided therefor at the for- Y Ward end ofthe machine; 'A new sheet of' paper-is then placed infposition on the dupli-l cating surface,'andjthe operation repeated.

The advantages of'in-y invention will" be;

obvious from. whatihas been said above concerning itsfconstruction and' inode of opera tion, butsome vof them maybe enumerated as follows i: Owing -to the ,elimination ofi unnecessary parts the apparatus is simple and inexpensive, while stillefficient in .operation it is capable Vofra-pid operation, the paper being stripped automatically from: the adhesive duplicatingsurface,fand the sheetof paperdoes notiihave to beheld bytheop#j yerat'or when'the same is beingstripped.`

Having thus described myfin-vention what LI claim as new anddesire to secure by. Letters y Patent is as follows: f

1'. In a duplicator, the combination with aV supporting frame,`A a bed, and Yan adhesive duplicating surfaceupon said bed adaptedlto` Vvreceive a sheet oflpaper; of-a roller mounted on said duplicator and adaptedlto Vdepressa sheet'of paper upon said adhesive duplicat` ing surface, asecondrollermounted on said duplicator in a plane above' that of-"the first. roller, means adapted to couple said rollers together, means adapted'.v to release said cou' pling-means, and means mounted on said f duplicator adapted for receiving th'evsheet f of paper after an'impression has been made f'thereonfand for carrying awa-y thesame; y y Y 2.` In a duplicator, the combination witha supporting frame, a bed, vandanv adhesive-'l duplicating surface upon. said vbed adaptedto receive a'sheetofjpaper; ofr'a roller rotatey Y.60*-ably-and slidablymounted on said duplicator and adapted to'd'epress a sheet ofpaperupon said adhesive duplicating surface, aisecond roller rotatably mounted on .saidduplicatori in. a planeab'ove ythat ofi'the first roller,

means adaptedto coupleV saidirollers(together,v

same,

r receive asheetofrpa-per; off's'liding:sidermem-` v,means adapted to release said coupling same areuncoupled, and meansfmounted onf said duplicator adapted for" receiving the lsheetofpaper after an impression Ahas been made/'thereon'v and for carrying away 'the 3;l In a vduplicaton'the combination withV a` duplicating surface uponsaidbed adapted to? receive a sheet of paper; of a roller rotatably mounted on saidduplicator andadapted to depress a sheet of paper uponsaid adhesive duplic ating surface, asecond roller rotatablyy vmounted on said duplicator and vrneansadapt-V ed' for coupling Y said rollers together, the" central axisvofthe second-named roller lying! in a plane-aboveand to the rear of the cen-v` trallaxis of the first namedf'roller when the said rollersxarerin coupled condition, vand for receiving the sheetof paperfafter'an iin-Yr pression has been made thereon and for car' j i'yingaway the same.

A. Ina duplicator, the combination with a supporting frame, a bed, and anadhesive duplica-ting surface upon said bed'adapted to condition, andmeans mounted on said ,du=pli cat'or adapted for receiving the sheetof paper andfor carrying yaway the same;

meansi provided on said'duplicator adapted i receive a sheet of paper; of afroller rotatably v mounted on'said duplicator and adaptedV to 95v the rotation of said rollers, when in coupled i aftervan impression has been-made thereon Y 5; In a duplicator, the combination with',

Aagsupporting.frame, a bed, and anadhesive duplica-ting surface upon saidjbed adapted to receive a sheetof paper; of a roller rotatablyy mounted on saidduplicator and adapted rotating thesame, a second-roller rotatably. mounted on said duplicator ina plane above that of thefirst roller, means adapted to cou-v to depress a sheet of'paper upon-said adhesive Y i duplicating surface, means `von said roller for ple said rollers together* meanson said sec v `ond roller adapted when incoupled` condition to engage said first named roller rotating means whereby said rollers vmay rotate together,N means for releasing'.v said coupling Vmeans,l and meansmounted on said duplica-1 tor adapted for receiving the sheet of paper after animpression has-beenmade thereon l and forcarrying away the same.

6. Ina duplicator, theconibina'tionfwitlr I a supporting frame, abcd, andan adhesivel duplicating surface upon said bed adapted to bers mounted on said duplicator, a roller adapted to depress ai sheet ofpaper upon said adhesive duplicating surface journaled in said side members,- brackets slidably mounted in said side members, a second roller mounted in saidjbrackets, said second roller lying in a plane above that of the first named roller,

means ada ated to cou le said rollers together and means mounted on said duplicator adapt-- ed for receiving the sheet of paper after an impression has been made thereon and for carrying away the same.

V7. In a duplicator, the combination with a supporting frame, a bed, and an adhesive duplicating surface upon said bed adapted to receive a sheet of paper; of side members slidably mounted on said duplicator, a roller adapted to depress a sheet of paper upon said adhesive duplicating surface, journaled for rotation in said side members, brackets slidably mounted in `said side members, a second roller rotatably mounted in saidv brackets, means adapted to couple said rollers together, said rollers being in yielding` contacting engagement with each other, when in coupled condition, means adapted to release said coupling means, and means mounted on said duplicator adapted for receiving the sheet of paper after an impression has been made thereon and for carrying away the same.

8. In aduplicator, the combination with a supporting frame, a bed, and an adhesiveduf plicating surface upon said bed adapted to receive a sheet of paper; of side members slidably mounted on said duplicator, a roller rotatably mounted in said side members, said roller being adapted to depress a. sheet of paper upon said adhesive duplicating surface, brackets slidably mounted in said side members, a second roller rotatably mounted in said brackets, means for normally holding Ysaid brackets spaced from said side members,

means mounted on said side membersfor detachably engaging a portion of said brackets for bringing .said first and second named rollers into an approximated and coupled position, said rollers being in yielding contacting engagement with each other, when in said coupled position, means for releasing said last mentioned means, and means mounted on said duplicator adapted for receiving the sheet of paper after an impression has been v made thereon and for carrying away the above that of the vfirst roller, a pinion mounted on said second roller adapted to mesh withl the pinion on said first rollerwhen said rollers are in coupled condition,f.means adapted to couple said rollers together, means adapt ed to release said coupling means, means adapted to automatically separate said rollers from each other, and means mounted on said adapted to depress a sheet of paper upon said adhesive duplicating surface, a second roller slidably and rotatably mounted on said vduplicator in a plane above that of the `first 'izo roller, said second roller being adaptedto hold a portion of said sheet of paper away from said adhesive duplicatingV surface, means adapted to couple said rollers together, means adapted to release Y said coupling means, means adapted to draw said second named roller away from said first-named roller when the same areuncoupled, and means mounted on said duplicator adapted for receiving the sheet of paper after an impression has been made thereon and for carrying away the same. Y f f 11. ln a duplicator, the combination witha supporting frame, a bed, and an adhesive duplicating surface upon said bed, adapted to receive a sheet of paper; of side members slidably mounted on said duplicator, a roller rotatably mounted inf said side members adapted to depress a sheet of paper upon said adhesive duplicating surface, a second roller adjustably mounted in said sidemember and normally spaced from said first roller, said second roller adapted to hold a portion of said sheet of paper awayffrom said adhesive duplicating surface, means adapted to couple said rollers together with an edge of said sheet of paper held between them, and means mounted on said duplica-vr tor adapted for receiving the sheet of paper after an impression has been madethereon and for carrying away the same.

l2. 1n a duplicator, the combination .with a supporting frame, a bed, andan adhesive duplicating surface upon said bed adapted to receive a sheet of paper; of side members slidably mounted on said duplicator, a roller rotatably mounted inl said side -members adapted to depress a sheet of paper upon said adhesive duplicatingrsurface, an elongated bearing provided in said side members, a rod slidably mounted in said bearing, a stop means on one end of'said rod, a bracket on u the other end of said rod, spring means provided between said bearing and bracket for ,normally holding said bracket away from said bearing, a second' roller rotatably mount-` ed in said brackets, said roller lying inra plane above'that ofthe firstroller, means adaptedto couple said :brackets and side members together for-bringing said rollers in contact withv eachother, ,and means for Vreleasing said coupling means.

13. In a device of the character described s the combination with an adhesive duplicating surface of a pair of r-ollers,.one of said rollf ers adapted to depress a sheet of paper upo-n f said adhesive duplicating surface, the other of said rollers lying in a plane above that of the first roller, means for detachably hold- Aing said rollers in cont-acting engagement with each other, means for releasing said last mentioned holding means, means adapted to draw one of said rollers away fromthe other upon the release of said holding means,l and means mounted on saidduplicator adaptu ed for receiving the sheet of paper after an impression has been made thereon and for carrying away the same. v i s 14. In a duplicator, the combination with a supporting frame, a bed, and an adhesive f duplicating surface upon said bed adaptedto receive a sheet 'of paper; of slidable side mem- V bers'mounted on said duplicator, a-roller Y a `the combination with an adhesive duplicating Y rotatably mounted in said.' side members adapted to depress a sheet of paper upon said duplicating surface,a second'roller mounted on said side members in a plane above thatof the firstL roller, said'secondroller adapted tov hold a portion of said sheet of paper awayfrom said adhesive duplicating surface,-

means adaptedtok couple said rollers .to-'

gether, and t-o hold the same in contact with Y, each other throughout theirlength, whereby vupon the rotation of said rollers the sheet of paper lwill be stripped fromv said adhesive duplicatingsurface and. fed upwardly and vforwardly by said rollers, means adapted to release said coupling means, and means mounted on said duplicator adapted for receiving the sheet ofV paperafter an impresf sion has been made thereon andfor carrying away the same.

15.'V In aA device of the character. described surface of a pair of rollers adapted to contract with each vother thrQughout their full i .length when in coupled position, the central axis'of one ofy said rollers lying above and' y' tothe rear of the central axis of said other 1 roller when said rollers are'infcont'act with each other, means'normally holding said roll-V ers spaced from each other, meansadapted to couple said -rollers together, means adapted a to release said coupling means, and means vC) mounted on said duplicatoradapted for receiving the sheet of paper after an-impresaway the same. Y

16. In a duplicator, the combination with ay supporting frame, a bed,and an adhesive tatably and slidably mountedonr said duplis cator adapted to depress a sheet of paper upon said duplicating surface, a secondi ,roller lying in a plane to the rear and above that of the first roller cooperating with said first roller forautomatically stripping saids'heet of paper from saida'dhesive duplicating sur-V face, and means mounted on saidfduplicator adapted for receiving the sheet of paper after an impression has been made thereon and for` lcarrying away the same. v

. 17. In a duplicator, the combination with a supporting frame, a bed, an adhesive duplicating surface upon said `bed adapted to receive a sheet of paper; of a roller rotatablyy lduplicating surface upon said bed, Vadapted Vto receive a sheet ofpaper; `of a roller ro-V and slidably mounted on said duplicator' adapted to depress a sheet of paper upon said duplicating surface, a second roller rotat-l ably and slidably mounted on said duplicator,

said secondenamed and first-named rollers cooperating witheach otherrto automatically strip a sheet of paper from the saidA adhesive Y 'duplicating surface, and means provided on saidv duplicator adapted for receiving the sheet of paper after an'impression has been made thereon and for carrying away they plicator, said second-named and first-,named rollers cooperating with eachother to automatically strip a sheet of paper fromthe said adhesive duplicating surface, andimeans mounted onfsaid duplicator forpreven'ting, Y

theV freeedge of the paper 'from coming in contactwith the saidduplicating surface, as Vthe saidy paper is being stripped therefrom,

saidk last mentioned means comprising a plu-` rality of strips each having one end secured at a point adjacent the depressing roller and adapted to move therewith, and the otherend thereof passing over the end of the supporti infr frame and having a ycounterweight,lcarl' In testimony whereof I aihx my signature. I

FRANK A.. ZIBELMAN. i

sion has been made thereon and for carrying l 

